Debt - Warrant Liability (Details) $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 08, 2020 USD ($)
Debt Instrument [Line Items]
Warrant liability	$ 7,944	$ 7,944	$ 7,944		$ 7,256
Warrant liability, fair value adjustment	$ 688	$ 700	$ 734	$ 0
Expected dividend yield
Debt Instrument [Line Items]
Warrant liability, measurement input	0.0000	0.0000	0.0000		0.0000
Warrant Liability | Expected volatility
Debt Instrument [Line Items]
Warrant liability, measurement input	1.2894	1.2894	1.2894		1.2821
Warrant Liability | Risk-free rate
Debt Instrument [Line Items]
Warrant liability, measurement input	0.0029	0.0029	0.0029		0.0045
Warrant Liability | Remaining contractual term (year)
Debt Instrument [Line Items]
Warrant liability, measurement input	4 years 11 months 8 days	4 years 11 months 8 days	4 years 11 months 8 days		5 years